About dynamic range (1 Viewer)

[Ted Y.]

The photo sensor have a dynamic range.

How about the photo lenses? Has the coating some influence, or the defects in material, or the material itself?

Can one apply the term of “dynamic range” to photo lenses?

 

[Mono]

I can't really think of a sensible usage of "dynamic range" in relation to lenses. Dynamic range is the difference between the lowest level of sensitivity and the highest. Whilst one could make a case that the impurities in a lens scatter the light and at extremely high light levels the scattering would obscure the actual image and that extremely low levels the transmission losses of the lens would prevent any light passage. But such a dynamic range would be orders of magnitude higher than that of any observation device connected to the lens.

 

[Ted Y.]

Dynamic range is also about the number of steps between the lowest level of sensitivity and the highest.
The number of steps is paramount.

 

[Mono]

I don't know what you mean by steps? The light source varies smoothly and any variation in light transmission through the lens will also be smooth. Cameras will add granularity though having settings in shutter speed, aperture and ISO but these factors are all smooth and continuous the steps are purely artificial in the camera UI.